Water is vital for survival, with good hydration people function well, and to look and feel good. People can survival several weeks without food but only can survival few days without water. People can keep well hydrated drinking a variety of fluids during the day such as teas, coffee, low fat milk, soups in add of drinking water...

To meet the need for adequate daily intake of water or liquids it is possible to drink a variety of beverages as a substitute for water. Although water has the advantage of meeting hydration requirements without providing additional energy, it is not people's preferred drink...

Dehydration occurs when water losses are not sufficiently replaced by drinking fluids. When you lose more fluid than you take in, and your body doesn’t have enough water and other fluids to carry out its normal functions; unfortunately, thirst isn’t always a reliable gauge of the body’s need for water, especially in children and older adults...

Nutrition is defined as the "science of food", the nutrients and other substances therein, their action, interaction and balance in relation to health and disease, and the processes by which the organism ingests, absorbs, transports, utilizes and excretes food substances[1]...

Diet and nutrition are not the same. Diet is the sum of food that people eat each day while nutrition is the science of how living organisms obtain and use food to support all the processes required for life...

Although nutrition research commenced more than 200 years ago in the dawn of the chemical revolution[3], about more two thousand years ago there are evidences that human being began to think how the nutrition, the environment and physical exercises influence on the health and the life...

Is it possible to teach and convince people to change their nutritional behaviours by choosing and eating healthier foods when vending machines are installed in many hospitals and schools in North America?...